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<br />.
<br />()1I11.1~
<br />
<br />
<br />.
<br />
<br />Requirements
<br />for Additional
<br />Water Supplies
<br />
<br />.
<br />
<br />Requirement.. tllr ,IlJJi,jon;l] ..1,11....-
<br />..... iut"..... '-ller "Uprl1~'" \~ II] Ot..' rrilll;tT1J~
<br />gCl1l"rah:J trom lhr<,t" .lrlo-'i*'. :>'1 .\: I
<br />JemanJ.. frolll an in~'rl';J"lng in..lilk'
<br />populal,,'n. L'l1\iwnntcnla] \,.'on-
<br />"!r.lin!" """l\:iah:J with t'm!;..tl1l!nl.'u
<br />'recie.. r\:l'tI\l'~ prngr.JJlI": ;IllJ Ln-
<br />\"'rca..cJ agricultural u,\,.' ,mJ.\l .\: I
<br />demand.. In t!own..ucJn1 l,'llrnpae[
<br />..tall,'.. Ullll/ing CnlllraJll Ri\r:r. S,'ulh
<br />Plalle KiLf.'r ;Hld Arl..alh;[' Ri\t'r
<br />I1m\.-... Agn\'ullUr<l1 walcru..c rn('uln-
<br />rado j.. not n.lX'dt'J to llIeR'a'\,.' III thl'
<br />luturl', hnpal"h on lutuIl.-' ClllllfaJo
<br />\\';lIl'rrl'qulft.'Il1l'm'tlfinl('r'IJiI:n'l11-
<br />P,Il'[ j"Ul".. and \"'Il\'ironmcmal pm-
<br />grarn"l,'um:nll~ h,.'lIIg nq~I'li;Jk'J can
<br />m'l ho:c..lllllah:J at rrc'l,'nt. hul could
<br />pnnc to lx' 'lgl1l11c;mt in Illl. nt.\1
<br />l.ClllUI!
<br />
<br />Tht. nt't'd tllr aJulllonal ~1 <'i.: I w.llcr
<br />wa' t"lim.l1~'d h~ Walcr Dj\i'l"n
<br />ha~ed (1Il thc projCl:ICU popul.t1lon.
<br />W(1lcr UClll.LnJ,. and Ihc I 'Nil (',,10-
<br />rado Wala I"l.'l'c.h SUr\c~ rt',ulh, .\
<br />range of dl! .~l'ar yidJ, for cxi",ing
<br />water ,urrly rrojt'l:h \~.h d,'\ d'lpl.'d
<br />ha~t'J tin low. anJ high-)'Idd c,ll-
<br />m:lIt"rnrwatt'ragl.'nt'it',nOlrrtl\'lJ.
<br />ing 111i, informali\1n in return,.J 'Uf-
<br />vcys.
<br />
<br />.
<br />
<br /> 2,500,000
<br /> 2,300,000
<br /> 2,100,000
<br />:I 1.900,000
<br />1,700,000
<br />.
<br />, 1,500,000
<br />,
<br />.
<br />E 1.300,000
<br />0
<br /><; 1.100.000
<br />>
<br /> 900 000
<br /> 700.000
<br /> 500.000
<br /> 1980 '000 2020 ,.>0
<br />
<br />Yea'
<br />
<br />Threats and Opportunities
<br />
<br />Se\'erallhreals to exi<.ting WOller l>upplies and opportunities for developing ne.....
<br />l>upplies .....e~ identified in the 19Q6 Colorado Watt'r Need, Survey. A factor
<br />\\hich is M.'t'n as a lhrealto one agency lIlay be perceived a:. an opportunilY 10
<br />another,
<br />
<br />Thrt>at.. to 'Vater Ut'H')opment
<br />. Unpredictability of weather.
<br />rdilled or calastrophic events
<br />. Additional kder,lI and state ell\i~
<br />rnnmemal regulations
<br />. Degrndltionofwatersourcequal-
<br />ity
<br />.Drawdownofaquifefwalerkveb
<br />. Lack of re~rv()ir "'lOrage ,pace
<br />. Restriction., on water use due to
<br />illlerstate compact ft'quiremellll>
<br />. Exportation of water from the
<br />Westl'rn Slope to the Fmnt Range
<br />. Unsustainable growth
<br />. Reduclion of return flows duc 10
<br />conversion of irrigalion use to do-
<br />me...ticu..;e
<br />
<br />Opportunilil'S fur Watu
<br />1h>~e1o~nU'nt
<br />. Grt"alcr cffit-icncy in the uo;e of
<br />.....ater
<br />. Development of reu~ supplies
<br />. Creation of ...lOrage space
<br />. Conjuncti\e use of ground- and
<br />surf;lce-water su~plie!i
<br />. Watercollscrvalion
<br />. Useofnun-polablewaterforland-
<br />scape' inigalion
<br />. Tmnsba,in transfers
<br />. Purchax> of senior inigalion .....a-
<br />lerright'>
<br />. Artificial m__hargc of groundwa-
<br />tcraquifers
<br />
<br />Allh'fUgh IIi... n,ll f'I."'lblt'IOUe\t'lop
<br />prel:iw pnIJt.l"Il'lrl<. 'If fUlurt' regi'fn;11
<br />(lr ...lalewide v.alt'r reljuirt'menh,the
<br />following nh...ef\'ation.. can ..afl'l~ he
<br />Ill.tde.
<br />
<br />An ;ldllilional :'iOO,OOIl III
<br />I.OOO.OOOane-lect will he needed
<br />to IllCl'1 growing.\t <'I.: I dellland,
<br />in Culorado h)o Ihe )ot-ar ~ I 00,
<br />
<br />Agri....ullur.ll dt'mamh art' not e\-
<br />pes'led to Ins"fe;l,,' through Ihe )ocar
<br />~IOO.
<br />
<br />,
<br />
<br />---.-.
<br />I
<br />-'-
<br />
<br />prOf8Clecl
<br />Aad't,onal
<br />Supply Requ"ecl
<br />=500.000 ac.l
<br />10 1.000.000 a
<br />
<br />
<br />Iowestlmal.
<br />~,~
<br />year yield
<br />
<br />.
<br />
<br />2060 2080
<br />
<br />-+-- PrOjected Oemar><l
<br />Based on Papulatl(lf1
<br />PrOjKtiOflS
<br />-0- PrDjeCled Oemanc:l
<br />Based on Survey
<br />R._
<br />
<br />''''
<br />
<br />Sld/nudt' Prorctl.J Jt ,{ I /)t'""m,/I'\ [Jr; rnJr ndJ
<br />
<br />
<br />_l Demand... for t'n\'irllnmO:nlal pro-
<br />gram.. fe.g.. enJangat'd fi,h r,'-
<br />s'm't")' progr;tnh) may impal:t
<br />.", hen and \\hert' fUluro: Walt'r ue-
<br />\c!opmcru can 'lol,YUr.
<br />
<br />-to InS"f,'a,ing dem;md.. in down-
<br />,trt';H11 ,lal," may put additional
<br />,In'", on Colorado walt'r re-
<br />"lurl't'", panK-ularly in the Upper
<br />COlor:ldll River, St,ulh Plath;'
<br />Riwr and Arlansa... Rivt'r Basin'>.
<br />
<br />5. \\'alt'r conservation pradil:t's.
<br />while imJXlrtanl. an' Ill.t c\pet.ted
<br />In ..ati~fy fUlllre Willer ..uppl)'
<br />need, alone,
<br />
<br />t.. PruJecteddt'mandwill~'~o:ee-dnlr-
<br />remly Jt'vclo("lCd ",urrlic.. in ..ome
<br />regitmsinth,'ne\I~O)oea~. Giwn
<br />the lime r('quired 10 implemt'nt
<br />\\dlt'r dt'\'t'lopmctll pmjt'Cb, d-
<br />t'lln, arc warr.mled 10 expedile
<br />currentl~ proposed prnjt'ct~ and
<br />encouragt' plannmg of nev.
<br />prnjcct...
<br />
<br />Tho: Clllorado Watl'r St"('d~ SUr\'c~
<br />Ids.ntificd OH'r 50 ..ignifio:ant waler
<br />
<br />nmW1Ut',i 1m next ,mg.t-
<br />
<br />.......
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